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(NOMOMH R. s. HENDERSON & A. SANDERS.

BALANCE DOOR HANGER.

No. 279,442. PatentedvJune 12, 188 3.

INVENTOR:

WITNES E UNITED STATES PAT NT ()FFIcE.

BALANCE DOOR-HANGER.

SPECIFICATION forming part of Letters Patent No. 279,442,

dated June12, 1883.

Application filed May a. 1882. 1N0 model.)

To all whom it "my concern:

Be it known that we, ROGER S. HENDER- son and Arms SANDERS, citizens of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Balanced Door-Hangers, of which the follow ing is a specification.

Our invention relates to an improvement in thatclass of hangers for sliding doors inwhich the door is carried by a pair of levers forming a parallel-movement device, the object of our invention being to provide for the ready con- .nection of the hanger to or disconnection of the same from the door, so that the device can be tested and its accuracy insured before applying the door thereto.

In the accompanying drawings, Figure l is a side viewof a door and door-frame with our improved hanger, the door being open; Fig. 2, the same with the door partly closed; Fig. 3, a perspective view, showing the device employed for connecting one of the levers to the door-frame; and Fig. 4, a perspective view of the device employed for connecting the other lever to the door.

A and B are the two levers whereby the door. D is hung, these levers being pivoted together in the center. is pivoted to a plate, a, which is secured to the door-frame neanthe floor, the upper end of said lever carrying a roller, 1), which is adapted to slide in a guide, (I, secured to the rear edge of the door, near the top of the same. The lower end of the lever B is pivoted to a stud, f, on the rear edge of the door, close to the bottom, and the upper end of said lever is connected to a counterbalancearm, F, which carries a weight, g, and is hung by radius-bars h and 17 to a frame, 172, secured to the doorframe. As the door is moved backand forth the lower end of the lever B is caused to travel from and toward the lower end of the lever A in a horizontal line, the upper ends of the levers also approaching each other and at the same time having a vertical movement. This arrangement of levers has been heretofore used for hanging doors, and we desire to make no special claim upon it, our invention relating merely to the method of connecting the lower end of the lever B to the door and the lower end of theleverAto the door-frame. Usually the lower-end of the lever A has been hung to lowed to drop down onto the floor.

The lower end of the lever A the door-frame by a fixed pin, and the lower end of the lever B has been connected to the door by. a pin secured to a plate thereon, so that the parts had to be applied to the door before the latter was inserted into the frame, and in case any defect in the hanger was developed 011 trial the entire fixture had to be removed before the defect could be remedied. To overcome these objections we provide the lever B with a pin adapted to a slotted stud,

f, on the door, and we hang the lower .end of the lever A 'to an angle-plate, (I, which is adapted to one of the posts of the doorfiame, and is held in place by screws inserted from the outside, so that it can bereadily detached when desired.

\Vhen it is desired to remove the door it is adjusted to the closed position, and the plate a. is then detached from the door-frame and al- This permits the lower end of the lever B to drop to the same extent, the pin of the lever being be ing thus removed from the slot in the stud f. The roller I) is then slipped laterally from the guide d, and the door is released from the hanger.

In order to rehang the door the operations are reversed, the roller I) being first slipped into the guide (I, and the plate a being then elevated to its proper position and secured, the elevation of the plate causing a like elevation of the end of the lever B and the engagement of its pin with the slotted stud f.

It will thus be seen that the door can be readilyapplied to or removed from the hanger after the latter has been put in place in the frame, so that ample facilities are afforded for testing the hanger and getting it into proper working order "before applying the door thereto.

Instead of using a slotted stud, f, on the door, a pin on the latter may be adapted to a slot in the lower end of the lever B,- but the slotted stud is preferred.

Ve claim as our invention- 1. The combination of the door and the pivoted levers A B, forming a parallel-motion hanger therefor, the lower end of the lever B being connected by an open joint to the door, and the lower end of the lever A hung to a detachable pin at the front edge of the doorframe, as set forth.

2. The combination of the door having a terbalanceleverh, the open joint 'l'orthelower IO slotted plate, f, the frame having a detachable end of the lever B, and the detachable pivotplate, a, with pivot-pin, as described, and the pin for thelower end of the lever A, as set forth.

pivoted levers A B, the former adapted at the ROGER S HENDFRSON 5 lower end to the pivot-pin 0f the plate (1, and AMOS SANDERS the lever B having at the lower end a pin adapted to the slot of the plate f, as set forth. \Vitnesses 3. The combination of the door and frame, CHAS. E. PANCOAST, the levers A B, the slotted guide (I, the oonn- JACOB HATTER. 

